[PATCH] D61514: [AArch64][SVE2] Asm: add integer multiply-add/subtract (indexed) instructions

[Cullen Rhodes via Phabricator via llvm-commits]

c-rhodes created this revision.
c-rhodes added reviewers: SjoerdMeijer, sdesmalen, ostannard.
Herald added subscribers: arphaman, kristof.beyls, tschuett, javed.absar.
Herald added a project: LLVM.

This patch adds support for the following instructions:

  MLA mul-add, writing addend (Zda = Zda +  Zn * Zm[idx])
  MLS mul-sub, writing addend (Zda = Zda + -Zn * Zm[idx])

Predicated forms of these instructions were added in SVE.

The specification can be found here:
https://developer.arm.com/docs/ddi0602/latest


Repository:
  rL LLVM

https://reviews.llvm.org/D61514

Files:
  lib/Target/AArch64/AArch64SVEInstrInfo.td
  lib/Target/AArch64/SVEInstrFormats.td
  test/MC/AArch64/SVE2/mla-diagnostics.s
  test/MC/AArch64/SVE2/mla.s
  test/MC/AArch64/SVE2/mls-diagnostics.s
  test/MC/AArch64/SVE2/mls.s

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